Monocular Cues

-Depth cues that require the use of only one eye.
-Monocular depth cues include: relative size, relative motion, interposition, relative height, texture gradient, relative clarity, and linear perspective.

Relative Size
Using the perceived size of a familiar object to determine depth
The larger the object appears, the closer the object is to the viewer

Relative Motion
A person who is moving can determine depth by focusing on a distant object.
Objects further away than the object of focus will appear to move in the same direction as the subject is moving.
Objects closer than the object of focus will appear to move in the opposite direction.

Interposition
Method of determining depth by noting that closer objects partially obstruct the more distant objects
Also called “overlap”

Relative Height
Method of determining depth by noting that distant objects appear higher in your field of vision than do closer objects

Texture Gradient
Method of determining depth by noting that distant objects have a smoother texture than nearby objects

Linear Perspective
Method of determining depth by noting that parallel lines appear to converge in the distance
The lines appears to eventually merge on the horizon.